ICD-10-PCS 2027 procedure code
09B43ZZExcision of Left External Auditory Canal, Percutaneous Approach
Short description: Excision of Left External Auditory Canal, Perc Approach
Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 09B43ZZ
09B43ZZ is the ICD-10-PCS code for a excision procedure on the left external auditory canal using a percutaneous approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.
In plain terms, this corresponds to excision or destruction of other lesion of external ear, the ICD-9-CM procedure title it maps to (18.29).
For a different body part, codes include 09B03ZZ (right external ear), 09B13ZZ (left external ear), 09B33ZZ (right external auditory canal), 09B73ZZ (right tympanic membrane), 09B83ZZ (left tympanic membrane), 09BB3ZZ (right mastoid sinus) and 16 more.
The same procedure with a different approach is coded 09B40ZZ (open), 09B44ZZ (percutaneous endoscopic), 09B47ZZ (via natural or artificial opening), 09B48ZZ (via natural or artificial opening endoscopic) and 09B4XZZ (external).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
It has been valid since ICD-10-PCS took effect on October 1, 2015.
What each character means
- 1. Section
- 0Medical and Surgical
- 2. Body System
- 9Ear, Nose, Sinus
- 3. Operation
- BExcision
Cutting out or off, without replacement, a portion of a body part
The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies
Includes: Partial nephrectomy, liver biopsy
- 4. Body Part
- 4External Auditory Canal, Left
Includes: External auditory meatus
- 5. Approach
- 3Percutaneous
Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09B03ZZExternal Ear, Right
- 09B13ZZExternal Ear, Left
- 09B33ZZExternal Auditory Canal, Right
- 09B73ZZTympanic Membrane, Right
- 09B83ZZTympanic Membrane, Left
- 09BB3ZZMastoid Sinus, Right
- 09BC3ZZMastoid Sinus, Left
- 09BF3ZZEustachian Tube, Right
- 09BG3ZZEustachian Tube, Left
- 09BK3ZZNasal Mucosa and Soft Tissue
- 09BL3ZZNasal Turbinate
- 09BM3ZZNasal Septum
Different approach
Different qualifier
ICD-9-CM equivalent
Converter →- 18.29Excision or destruction of other lesion of external earapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 09B43ZZ
Is 09B43ZZ a valid ICD-10-PCS code for 2027?
- Yes. 09B43ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 09B43ZZ?
- The CMS GEMs map 09B43ZZ to ICD-9-CM 18.29 (Excision or destruction of other lesion of external ear).